Determine the cosine value of an angle given on the unit circle

Given an angle $ \theta $ on the unit circle, we need to determine the value of $ \cos(\theta) $.

For example, if $ \theta = \frac{\pi}{3} $, we can use the unit circle to find:

$ \cos\left(\frac{\pi}{3}\right) = \frac{1}{2} $

Thus, $ \cos\left(\frac{\pi}{3}\right) = \frac{1}{2} $.

Given an angle $ heta $ on the unit circle, we need to determine the value of $ cos( heta) $.

If $ heta = frac{pi}{3} $, then:

$ cosleft(frac{pi}{3}
ight) = frac{1}{2} $

For $ heta = frac{pi}{3} $:

$ cosleft(frac{pi}{3}
ight) = frac{1}{2} $

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